comScore Releases April 2012 U.S. Search Engine Rankings

RESTON, VA, May 11, 2012 – comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released its monthly comScore qSearch analysis of the U.S. search marketplace. Google Sites led the explicit core search market in April with 66.5 percent of search queries conducted.

*“Explicit Core Search” excludes contextually driven searches that do not reflect specific user intent to interact with the search results.

17.1 billion explicit core searches were conducted in April, with Google Sites ranking first with 11.4 billion. Microsoft Sites ranked second with 2.6 billion searches, followed by Yahoo! Sites with 2.3 billion, Ask Network with 511 million and AOL, Inc. with 271 million.

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